WO2015077892A1 - Procédé de préparation de siox à structure filamentaire nanométrique et son utilisation comme matériau d'anode de batterie lithium-ion - Google Patents
Procédé de préparation de siox à structure filamentaire nanométrique et son utilisation comme matériau d'anode de batterie lithium-ion Download PDFInfo
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- WO2015077892A1 WO2015077892A1 PCT/CA2014/051141 CA2014051141W WO2015077892A1 WO 2015077892 A1 WO2015077892 A1 WO 2015077892A1 CA 2014051141 W CA2014051141 W CA 2014051141W WO 2015077892 A1 WO2015077892 A1 WO 2015077892A1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
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- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
- C01B33/182—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by reduction of a siliceous material, e.g. with a carbonaceous reducing agent and subsequent oxidation of the silicon monoxide formed
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
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- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
- C01P2004/16—Nanowires or nanorods, i.e. solid nanofibres with two nearly equal dimensions between 1-100 nanometer
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- C01P2004/50—Agglomerated particles
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- C—CHEMISTRY; METALLURGY
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- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates generally to anode materials for lithium-ion batteries (Li-ion). Specifically, the present invention relates to a process for preparing SiO x having a nanometric filamentary structure and to its use as anode material in lithium ion batteries.
- Lithium-ion batteries have been a huge success and significant commercial growth since the first work in this field by the Sony company in the early 90s.
- the technology is, originally, based on the materials of insertion of lithium as electrode material. Essentially, these materials consist of cobalt oxide as a cathode material (invented by J. B. Goodenough), and of carbon-based materials (coke or graphitized carbon) as the anode material.
- lithium-ion batteries have gradually replaced the Ni-Cd and Ni-MH batteries. Indeed, the performance of lithium-ion batteries is higher than that of the latter in most electronic applications. However, because of their high production cost and their intrinsic stability under Abusive condition, especially at the full charge state, only relatively small lithium-ion battery formats have generally been marketed successfully.
- lithium-ion battery technology relies heavily on the use of graphite-based anodes.
- an anode using a carbonaceous material has a theoretical limit of 372 mAh / g of specific energy capacity. This limits the potential for a future increase in specific capacity.
- lithium metal as anode material is studied. Indeed, metallic lithium has a high energy density, and can lead to a high specific capacity. However, metallic lithium is associated with security problems, due to the growth of dendrites during its use. In addition, it has a limited life by repeated charging / discharging cycles. Because of these disadvantages, several researches have turned to the use of silicon (Si), tin (Sn) and their alloys as potential high capacity anode materials.
- One way to improve the performance of silicon in cycling is to reduce the size of the particles in the anode material used (use of nanoscale particles). Indeed, the use of nanoparticles helps to relax the internal mechanical stresses associated with the important volume change [1].
- One technique is to use a material having a nanometric filamentary structure (nanofilament). Such a structure makes it possible to accommodate the deformations in the radial direction of the fibers, thus avoiding the sputtering of the silicon and the loss of the electrical contacts [1, 2].
- Another technique for reducing the volume expansion is to form an intimate mixture of silicon and an inert component that can accommodate the deformation. For example, silicon is finely dispersed in an inactive matrix used to relax mechanical stresses and ensure electrical continuity [1, 3].
- SiO x is currently commercially available. It is produced at a moderately high temperature (about 1250 ° C), under vacuum, according to the following reaction [6]:
- an equimolar mixture of Si0 2 powder and Si powder is heated in a tube, under vacuum, to a temperature of 1250 ° C.
- the gaseous SiO formed under these conditions is directed to a cooler zone of the tube where it is condensed.
- the tube is cooled, repressurized, and solid SiO x is recovered, then milled to the desired particle size.
- the relatively low temperature of the process allows the use of stainless steel for the construction of the vacuum tube (retort furnace), but in return, sets the partial pressure of SiO gas in the atmosphere of the tube at a very low level, and the productivity of the process is greatly affected.
- a micrograph taken under an electron microscope scanning shows the typical appearance of the material (Figure 1) with its X-ray diffraction analysis. X-ray diffraction analysis shows the amorphous nature of the material. Indeed, no diffraction peak is observed. This is typical of amorphous SiO having been rapidly cooled and not subjected to disproportionation reaction.
- Takami et al. [3] prepared a composite of Si, SiO x and C by disproportionation of silicon monoxide and polymerization of furfuryl alcohol at 1000 ° C. They reported a reversible capacity of about 700 mAh / g for 200 cycles.
- a material having a high energy capacity may consist of a nanometric dispersion of crystalline Si in an amorphous SiO 2 matrix.
- Lamontagne et al. disclose a method of preparing such material. The described method uses a SiO 2 smoke; in addition, the process incorporates the use of various catalysts [7].
- the inventors have developed a process for preparing an SiO x material having a nanometric filamentary structure (nanofilaments, nano-structured particles).
- the process according to the invention comprises a high temperature melting reaction between SiO 2 and Si leading to the formation of SiO 2 gas and a condensation reaction of a gaseous silicon monoxide atmosphere under normal (standard) or reduced pressure.
- the process incorporates the use of carbon.
- the material according to the invention allows the manufacture of high performance anode for lithium-ion batteries.
- the invention relates to:
- the carrier gas is an inert gas, preferably Ar, He, N 2 ; an oxidizing gas, preferably air, H 2 O, O 2 , CO 2 ; a reducing gas, preferably CO, H 2 ; a volatile hydrocarbon; or a combination of these.
- the solid silica (SiO 2 ) is introduced into the oven, accompanied by agitation, leading to the production of gaseous silicon monoxide (SiO); and displacing the gaseous SiO, using a carrier gas, in a low temperature zone where it undergoes condensation leading to the nanofilament particles of SiO x .
- the gaseous SiO is displaced, using a carrier gas, into a low temperature zone where it undergoes condensation leading to the nanofilament particles of SiO x .
- furnace is an induction furnace, an electric arc furnace or a submerged arc furnace.
- the carrier gas is an inert gas, preferably Ar, He, N 2 ; an oxidizing gas, preferably air, H 2 O, O 2 , CO 2 ; a reducing gas, preferably CO, H 2 ; a volatile hydrocarbon; or a combination of these.
- SiO x particles obtained comprise at least one of: amorphous SiO 2 , crystalline Si and SiC preferably SiC of ⁇ -form.
- Nanofilament particles of SiO x obtained by the process as defined in any one of items (1) to (28).
- Figure 1 illustrates the typical appearance of a commercial SiO material; micrograph taken under an electron microscope and X-ray diffraction analysis.
- Figure 2 shows the capacity of the anode when commercial SiO x is used as the material, and when a mixture of SiO x and graphite is used as the material.
- Figure 3 shows an induction furnace equipped with a graphite crucible.
- Figure 4 illustrates nanofilaments of SiO x obtained according to the method of the invention.
- FIG. 5 illustrates the X-ray diffraction analysis of the nanofilaments of
- SiO x obtained according to the process of the invention.
- Figure 6 illustrates training cycling results (electrochemical tests).
- Figure 7 illustrates stability cycling results (electrochemical tests).
- the present invention provides a process for the preparation of SiO x material wherein x is from about 0.8 to about 1.2; preferably x is equal to about 1.
- the SiO x material according to the invention has a nanometric filamentary structure (nanofilaments, nano-structured particles).
- the process according to the invention comprises the synthesis of particles of
- SiO x from the condensation of gaseous SiO obtained by a metallurgical process at high temperature, in which:
- a melting step is carried out, under a controlled atmosphere, to react Si (1) with Si0 2 (l, s) and to produce SiO (g).
- Si (1) Si0 2 (l, s)
- SiO SiO
- the melting step occurs according to the reaction:
- a gas or gas mixture is used as a vector to move the SiO (g) in a cold zone of condensation. There is then nucleation and growth of nano-structured solid SiO x particles.
- the melting step may be replaced by a carbothermic reduction step of Si0 2 .
- Different sources of carbon can be used; for example, graphite ( Figure 2), coal, petroleum coke, charcoal, wood or a combination thereof.
- the silica is, for example, in the form of quartz, quartzite or a combination of these: Si0 2 (/, s) + C (s)> SiO (g) + CO (g)
- SiO 2 gas can be composed of inert gases (for example: Ar, He, N 2 ), oxidizing gases (for example: air, H 2 0, O 2 , CO 2 ), reducing gases (for example: CO, H 2 , volatile hydrocarbons) or a combination thereof.
- inert gases for example: Ar, He, N 2
- oxidizing gases for example: air, H 2 0, O 2 , CO 2
- reducing gases for example: CO, H 2 , volatile hydrocarbons
- metallurgical grade silicon Si
- the experimental setup is also composed of a cover for the crucible, an argon injection port that will serve as a carrier gas as well as a capacitor ( Figure 3).
- the temperature of the liquid silicon is brought to 1500 ° C.
- the silica sand (Si0 2 ) is added to the surface of the liquid (Si), then the cover is placed and the argon injection is started.
- the magnetic field produced by the induction furnace causes rotation of the liquid mass on itself, keeping the Si0 2 (s) well dispersed in the Si (1).
- the parasitic reaction of silica fume production stops (2SiO (g) + 0 2 (g) ⁇ 2Si0 2 (s)) and the reaction of production of SiO x particles starts (SiO (g) ⁇ SiO (am)).
- the color of the product therefore changes from white (silica fume, Si0 2 ) to brown (SiO x ).
- the material produced is observed using a scanning electron microscope (SEM) under high magnification.
- the SiO x condensate produced according to the invention has spherical agglomerates of 2 to 10 diameters composed of a nanometric fibrous structure. Nanofilaments have a Approximate diameter of 50 nm and are connected together by spheres of about 100 to 150 nm in diameter ( Figure 4).
- the particles are composed of amorphous silica (SiO 2 ), crystalline silicon (Si) and silicon carbide (SiC) ( ⁇ -form).
- the SiO x has therefore undergone a disproportionation reaction leading to a nanometric dispersion of crystalline Si in an amorphous SiO 2 matrix.
- the total amount of oxygen measured by LECO, shows a similar oxygen level for commercial SiO x and that prepared according to Example 1.
- Silicon metal is produced using a submerged arc furnace by the carbothermic reduction of quartz (SiO 2 ) using reducing materials such as mineral coal, charcoal or petroleum coke. During the reaction, about 80% of the silicon is reduced according to the overall reaction:
- One of the intermediate reactions is the production of gaseous SiO in the hottest zone of the furnace (in the electric arc) according to the reaction:
- the SiO x recovered is fibrous, as for the first synthesis, and shows the same diffractogram X as the sample produced in Example 1: a certain amount of SiO undergoes the disproportionation reaction producing metallic silicon and quartz Amorphous, moreover the carbon-rich environment produces traces of silicon carbide (SiC).
- a composite electrode is manufactured by mixing the active material (SiO x ) with 25% w / w of carbon black (Denka black) and 25% w / w of binder (sodium alginate, Aldrich) in a solvent consisting of deionized water to obtain a homogeneous dispersion, then the dispersion is deposited on a copper current collector. The electrode is dried at 110 ° C. for 20 hours under vacuum.
- a CR2032 coin-cell battery is assembled in a glove box filled with helium.
- the electrolyte used is LiPF 6 (1M) in a 3: 7 (v / v) mixture of ethylene carbonate (EC) and diethyl carbonate (DEC) with 2% w / w of vinylene carbonate ( VC) (Ube) and the counter-electrode is a thin film of lithium.
- the electrochemical tests on the cell are carried out by galvanostatic discharge-charge cycling over the potential range 0.005 to 2.5 V at a rate of C / 24 ( Figure 6). Once the reversible capacitance is measured, the cell is cycled to measure its stability at a rate of C / 6 (FIG. 7).
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016528819A JP6652487B2 (ja) | 2013-11-28 | 2014-11-28 | ナノスケールのフィラメント構造を有するSiOxの調製のためのプロセス及びリチウムイオンバッテリにおける陽極材料としてのその使用 |
| CN201480064293.8A CN105793194A (zh) | 2013-11-28 | 2014-11-28 | 具有纳米级丝状结构的SiOx的制备方法和其在锂离子蓄电池中作为阳极材料的用途 |
| EP14865311.6A EP3083498B1 (fr) | 2013-11-28 | 2014-11-28 | Procédé de préparation de siox à structure filamentaire nanométrique et son utilisation comme matériau d'anode de batterie lithium-ion |
| CN202210297605.6A CN114620732A (zh) | 2013-11-28 | 2014-11-28 | 具有纳米级丝状结构的SiOx的制备方法和其在锂离子蓄电池中作为阳极材料的用途 |
| EP21171464.7A EP3896034A1 (fr) | 2013-11-28 | 2014-11-28 | Procédé de préparation de siox à structure filamentaire nanométrique et son utilisation comme matériau d'anode de batterie lithium-ion |
| KR1020227004190A KR20220025150A (ko) | 2013-11-28 | 2014-11-28 | 리튬-이온 배터리 애노드 물질로서 나노 규모 필라멘트 구조를 갖는 SiOx의 제조 방법 및 이의 용도 |
| ES14865311T ES2883117T3 (es) | 2013-11-28 | 2014-11-28 | Procedimiento para la preparación de SiOx con estructura de filamentos nanométricos y su uso como material anódico de baterías de ion-litio |
| CA2928933A CA2928933C (fr) | 2013-11-28 | 2014-11-28 | Procede de preparation de siox a structure filamentaire nanometrique et son utilisation comme materiau d'anode de batterie lithium-ion |
| US15/039,615 US10329157B2 (en) | 2013-11-28 | 2014-11-28 | Process for the preparation of SiOx having a nanoscale filament structure and use thereof as anode material in lithium-ion batteries |
| KR1020167012220A KR102362444B1 (ko) | 2013-11-28 | 2014-11-28 | 리튬-이온 배터리 애노드 물질로서 나노 규모 필라멘트 구조를 갖는 SiOx의 제조 방법 및 이의 용도 |
| US16/415,476 US20190367375A1 (en) | 2013-11-28 | 2019-05-17 | Process for the preparation of siox having a nanoscale filament structure and use thereof as anode material in lithium-ion batteries |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2835583A CA2835583A1 (fr) | 2013-11-28 | 2013-11-28 | Methode de preparation de siox nano-structure, et son utilisation comme anode de batterie lithium-ion |
| CA2,835,583 | 2013-11-28 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/039,615 A-371-Of-International US10329157B2 (en) | 2013-11-28 | 2014-11-28 | Process for the preparation of SiOx having a nanoscale filament structure and use thereof as anode material in lithium-ion batteries |
| US16/415,476 Continuation US20190367375A1 (en) | 2013-11-28 | 2019-05-17 | Process for the preparation of siox having a nanoscale filament structure and use thereof as anode material in lithium-ion batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015077892A1 true WO2015077892A1 (fr) | 2015-06-04 |
Family
ID=53198158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CA2014/051141 Ceased WO2015077892A1 (fr) | 2013-11-28 | 2014-11-28 | Procédé de préparation de siox à structure filamentaire nanométrique et son utilisation comme matériau d'anode de batterie lithium-ion |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US10329157B2 (fr) |
| EP (2) | EP3896034A1 (fr) |
| JP (2) | JP6652487B2 (fr) |
| KR (2) | KR20220025150A (fr) |
| CN (2) | CN105793194A (fr) |
| CA (2) | CA2835583A1 (fr) |
| ES (1) | ES2883117T3 (fr) |
| WO (1) | WO2015077892A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3922601A4 (fr) * | 2020-04-16 | 2022-05-25 | Tera Technos Co., Ltd. | Appareil et procédé de production d'oxydes de silicium, et matériau d'électrode négative à base d'oxyde de silicium |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2835583A1 (fr) | 2013-11-28 | 2015-05-28 | Hydro-Quebec | Methode de preparation de siox nano-structure, et son utilisation comme anode de batterie lithium-ion |
| CN107068996B (zh) * | 2017-02-27 | 2019-10-25 | 陕西六元碳晶股份有限公司 | 一种硅碳氮复合材料的连续制备方法 |
| EP3718158A1 (fr) | 2017-11-30 | 2020-10-07 | YPF Tecnologia S.A. | Anode sba-15/c pour une batterie lithium-ion et son procédé de fabrication |
| US10608246B2 (en) | 2017-11-30 | 2020-03-31 | Ypf Technologia S.A. | SBA-15/C anode for a lithium-ion battery and manufacturing method thereof |
| CN111747416B (zh) * | 2019-03-26 | 2022-03-04 | 新特能源股份有限公司 | 生产SiOx的装置及方法 |
| CN109950499B (zh) * | 2019-03-29 | 2022-05-20 | 中天新兴材料有限公司 | 纳米多孔硅碳材料的制备方法、极片 |
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| CN116216795B (zh) * | 2023-03-31 | 2024-12-24 | 宁波容百新能源科技股份有限公司 | 宽分布无钴富锂锰基前驱体及其制备方法 |
| CN116332193B (zh) * | 2023-05-18 | 2024-07-05 | 深圳凝石材料科技有限公司 | 烧结硅氧负极材料的方法 |
| CN117446807A (zh) * | 2023-11-14 | 2024-01-26 | 银硅(宁波)科技有限公司 | 一种熔融淬火法氧化亚硅复合材料及其制备方法与应用 |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3083498B1 (fr) | 2021-05-26 |
| EP3083498A4 (fr) | 2017-08-30 |
| KR102362444B1 (ko) | 2022-02-14 |
| JP2019089709A (ja) | 2019-06-13 |
| JP2017503738A (ja) | 2017-02-02 |
| JP6652487B2 (ja) | 2020-02-26 |
| CN114620732A (zh) | 2022-06-14 |
| KR20220025150A (ko) | 2022-03-03 |
| ES2883117T3 (es) | 2021-12-07 |
| EP3083498A1 (fr) | 2016-10-26 |
| US20190367375A1 (en) | 2019-12-05 |
| CA2928933C (fr) | 2023-02-28 |
| CA2835583A1 (fr) | 2015-05-28 |
| CA2928933A1 (fr) | 2015-06-04 |
| CN105793194A (zh) | 2016-07-20 |
| US20170260057A1 (en) | 2017-09-14 |
| EP3896034A1 (fr) | 2021-10-20 |
| US10329157B2 (en) | 2019-06-25 |
| KR20160091892A (ko) | 2016-08-03 |
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